1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anni [7]
3 years ago
13

A substance has a heat of fusion of 155 J/g. How many joules of energy are required to be removed in order to freeze a 10.0 g sa

mple?
Chemistry
1 answer:
vovangra [49]3 years ago
5 0

1550J

Explanation:

Given parameters:

Heat of fusion = 155J/g

Mass of sample = 10g

Unknown:

Quantity of heat removed to freeze the substance =?

Solution:

This is a phase change problem and we apply the formula for the specific heat of fusion to solve the problem:

                 Q = mL

   m is the mass of the substance

   L is the specific heat of fusion of the substance.

We then plug the parameters into the equation:

                Q = 155J/g  x 10g = 1550J

Learn more:

specific heat brainly.com/question/7210400

#learnwithBrainly

You might be interested in
100 POINTS !!!! TO RIGHT AWNSER!!!
Alecsey [184]
The answer is going to be C) because 
A)We know that she put all three boxes in the window and let them sat their for a hour
B)We know that the boxes are the same size
C)She used three different materials,and she wants to measure the warmth of each box. To see which one is the warmest 
D)She never said anything about mass
Hopes This Helps:)
3 0
3 years ago
Read 2 more answers
If an equal number of moles of the weak acid HF and the strong base KOH are added to water, is the resulting solution acidic, ba
s344n2d4d5 [400]

Answer:

Being a weak acid and a strong base, where it is diluted in a neutral medium such as water, the basic medium predominates, almost alkaline pH.

Explanation:

The acidity of the solution, being weak, means that its pH is not so low, therefore it will be easier to reach the values of 7 or 7 where alkalinity or basity is indicated.

6 0
3 years ago
Use the image above to answer the question: Roger collected four rock samples and wrote a description of how each was formed. Wh
IrinaVladis [17]

Answer:

B

Explanation:

Cause metamorphic rock is formed by heat pressure overtime

4 0
3 years ago
Read 2 more answers
What are some of the body's internal defenses
Amanda [17]
What are some of the body's internal defenses. The skin helps protect stuff to!
5 0
3 years ago
Read 2 more answers
It is the year 2040, and you are a research scientist. The amount of sunlight that reaches the earth has been drastically reduce
slava [35]
Hhfgbuugucviibygtvhgyvybubbiinubuvycyuj
3 0
2 years ago
Other questions:
  • Onetaq standard reaction buffer fungal metagenomics
    15·1 answer
  • HELP PLZZZZ!!!!! BRAINLIEST ANSWER!!! TY!
    6·2 answers
  • The density of benzene at 15 °c is 0.8787 g/ml. Calculate the mass of 0.1500 l of benzene at this temperature. Enter your answer
    10·1 answer
  • 1) Chemical analysis of a gaseous compound show its composition to be 36.4% carbon, 57.5% fluorine, and 6.1%
    10·1 answer
  • A sample of oxygen is collected over water at a total pressure of 692.2 mmHg at 17°C. The vapor pressure of water at 17°C is 14.
    15·1 answer
  • How to find the cube root of 1331 ​
    11·1 answer
  • Sulfuric acid is a colorless, oily liquid, used in the manufacturing of detergents, fertilizers, dyes and pigments, and even exp
    6·2 answers
  • About 68% of the electrical energy in the united states is produced by nuclear fuel
    15·1 answer
  • If 725 ml of N² gas is at 1 atm, what volume will it have at 1.4 atm?​
    15·2 answers
  • A copper sulfate solution contained 0.100 moles of copper sulfate dissolved
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!